Xinran Ji, 25, was found dead Thursday morning is his fourth floor unit at the City Park apartments in the 200 block of West 30th Street, after prosecutors say he was attacked on his way home from a study group.

With the announcement Friday that skeletal remains found near Victorville belong to Joseph and Summer McStay and that other remains are likely that of their two young children, authorities are asking several important questions.

A longtime friend of Bob and Arlene Holmes — parents of the suspect in the Aurora, Colorado massacre at a theater showing “Dark Knight Rises” — walked out of their Rancho Penasquitos home Friday thanking the public on their behalf.